SUND vs Nerveli App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUND
This app provides a tranquil experience through gentle vibrations and calming audio. It's designed to help users relax and find a sense of peace. Enjoy a soothing escape from daily stress.
- Emits vibration
- Plays soothing sounds
- Promotes relaxation
- Offers a calming experience
- Designed for stress relief
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A relaxing and calming app that emits vibration with soothing sounds. Terms of service: http://sund-admin.vibe-8.com/terms-of-service Privacy policy: http://sund-admin.vibe-8.com/privacy-policy
Nerveli App
This science-based wellness app helps individuals manage chronic pain by tracking symptoms and lifestyle factors. It uses AI to identify patterns between pain, sleep, stress, and daily habits, offering educational content and coping tools.
- Body Map pain tracking
- AI-assisted pattern insights
- Science-informed approach
- Educational library on pain management
- CBT and mindfulness tools
- Personalized guidance
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Nerveli is a science-based wellness app for people living with chronic pain. It combines Body Map tracking with AI-assisted insights to help users notice patterns between pain, sleep, stress, activity, and daily habits. Pain can feel overwhelming — Nerveli helps make those patterns easier to understand over time. Nerveli is a wellness and educational tool designed to help users track symptoms and lifestyle factors. It does not provide medical diagnosis, treatment recommendations, or clinical evaluation. Unlike simple symptom trackers, Nerveli helps you organize and reflect on changes in pain, sleep quality, stress levels, movement, and routines. This can help you better recognize trends, triggers, and habits that may be associated with flare-ups or persistent discomfort. What Makes Nerveli Different: Body Map Tracking — Tap where it hurts to build a visual history of your pain and notice location-based patterns over time. AI-Assisted Insights — Highlights connections between pain, stress, sleep, activity, and daily habits so you can better understand recurring patterns. Science-Informed Approach — Content and tools are informed by current pain research and designed to support self-awareness and daily management. Educational Library — Articles and guides written in an accessible language to help users learn more about pain, lifestyle factors, and coping strategies. CBT & Mindfulness Tools — Practical techniques that support relaxation, reflection, and healthier responses during difficult days. Personalized Experience — Guidance and content are adapted based on the information you choose to track in the app. Private & Secure — Your data stays yours. Never sold, never shared with advertisers. Millions of people live with chronic pain every day. Nerveli helps users build awareness, consistency, and confidence through structured tracking, education, and supportive tools — without false promises or quick fixes. Download Nerveli to start tracking patterns, building self-awareness, and taking small, meaningful steps forward.
Screenshots
Verdict
The clearest difference is in-app purchases: Nerveli App at none against SUND's 2. Nerveli App also leads on update cadence (weekly vs every 3 weeks) and ratings volume (7 vs 2). SUND's advantage is iOS requirement (13.0 vs 15.5). On price, rating, review sentiment and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SUND sells 2 in-app purchases, starting at $1.99 per month. Nerveli App asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for SUND against 5.0 for Nerveli App. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SUND ships an update every 3 weeks, Nerveli App weekly. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.
| Parameter | SUND | Nerveli App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (7 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 20 MB | 187 MB |
| Age rating | 4+ | 17+ |
| Developer | Colin Macintosh | Unicode LLC |
Customer experience
SUND
Nerveli App
In-app purchases
SUND
- One month subscription$1.991 Month
- One year subscription$19.991 Year
Nerveli App
No in-app purchases









